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Ultrasound and africa

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https://www.readbyqxmd.com/read/28259145/ultrasonographic-prevalence-and-characteristics-of-non-palpable-thyroid-incidentalomas-in-a-hospital-based-population-in-a-sub-saharan-country
#1
Boniface Moifo, Jean Roger Moulion Tapouh, Sylviane Dongmo Fomekong, François Djomou, Emmanuella Manka'a Wankie
BACKGROUND: Thyroid incidentalomas (TI) are highly prevalent asymptomatic thyroid nodules with ultrasound as the best imaging modality for their detection and characterization. Although they are mostly benign, potential for malignancy is up to 10-15%. In sub-Saharan Africa little data exists on the prevalence and risk categorization of TI. The aim of this study was to determine the prevalence and ultrasound characteristics of non-palpable thyroid incidentalomas among adults in sub-Saharan setting...
March 4, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28208277/ultrasensitive-ebola-virus-detection-based-on-electroluminescent-nanospheres-and-immunomagnetic-separation
#2
Zhen Wu, Jiao Hu, Tao Zeng, Zhi-Ling Zhang, Jianjun Chen, Gary Wong, Xiangguo Qiu, Wenjun Liu, George F Gao, Yuhai Bi, Dai-Wen Pang
The 2014-16 Ebola virus (EBOV) outbreak in West Africa has attracted widespread concern. Rapid and sensitive detection methods are urgently needed for diagnosis and treatment of the disease. Here, we propose a novel method for EBOV detection based on efficient amplification of electroluminescent nanospheres (ENs) coupled with immunomagnetic separation. Uniform ENs are made by embedding abundant amounts of CdSe/ZnS quantum dots (QDs) into copolymer nanospheres through simple ultrasound. Compared to QDs, ENs can enhance electroluminescence (ECL) signals by approximately 85-fold, achieving a signal-to-background ratio high enough for EBOV detection...
February 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28195263/kikuchi-fujimoto-disease-a-clinicopathologic-update
#3
F Pepe, S Disma, C Teodoro, P Pepe, G Magro
Kikuchi-Fujmoto disease (KFD), also known as "histiocytic necrotizing lymphadenitis", is a rare lymphadenitis of unknown origin, but with an excellent prognosis. It is more common in Asia, but isolated cases are also reported in America, Africa and Europe. The disease can have an acute or subacute course, usually develops in 1 to 3 weeks, with spontaneous resolution in 1-4 months. The main clinical sign is cervical lymphadenopathy, especially in the posterior cervical triangle with bulky and painful lymph nodes, usually affecting only one side; rare cases of generalized lymphadenopathy can be seen...
September 2016: Pathologica
https://www.readbyqxmd.com/read/27967219/a-survey-of-clinical-practice-patterns-in-management-of-graves-disease-in-the-middle-east-and-north-africa
#4
Salem A Beshyah, Aly B Khalil, Ibrahim H Sherif, Mahmoud M Benbarka, Syed Abbas Raza, Wiam Hussein, Ali S Alzahrani, Asma Chadli
OBJECTIVE: Graves disease (GD) is commonly seen in endocrine clinical practice. The objective of this study was to evaluate the current diagnosis and management of patients with GD in the Middle East and North Africa (MENA). METHODS: An electronic survey on GD management was performed using an online questionnaire of a large pool of practicing physicians. Responses from 352 eligible and willing physicians were included in this study. They were mostly endocrinologists (157) and internal medicine physicians (116)...
March 2017: Endocrine Practice
https://www.readbyqxmd.com/read/27904846/complete-congenital-heart-block-in-a-neonate-with-a-complex-congenital-heart-defect-in-africa
#5
Clovis Nkoke, Edvine Yonta Wawo, Liliane Kuate Mfeukeu, Larissa Makamte, Sandrine Dikosso Edie, Flore Esiene Balana
Congenital heart block (CHB) is rare disorder that has a higher mortality when associated with structural congenital heart defects. Very few cases have been reported in Sub-Saharan Africa (SSA). We present a case of complete CHB associated with a complex congenital heart defect in a neonate in Cameroon. A 1-month-old neonate in Cameroon was referred for the evaluation of bradycardia. The obstetrical ultrasound done during pregnancy revealed fetal bradycardia without further evaluation. Clinical examination showed well a developed neonate with bradycardia at 62 beats/minute, and mild cyanosis with oxygen saturation at 93% at room air...
October 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/27836795/ultrasound-for-patients-in-a-high-hiv-tuberculosis-prevalence-setting-a-needs-assessment-and-review-of-focused-applications-for-sub-saharan-africa
#6
REVIEW
Tom Heller, Eric A Mtemang'ombe, Michaëla A M Huson, Charlotte C Heuvelings, Sabine Bélard, Saskia Janssen, Sam Phiri, Martin P Grobusch
Ultrasound is increasingly used in point-of-care applications and has great potential to support the diagnosis of infectious diseases, especially in resource-limited settings. A cross-sectional study was performed involving 100 Malawian patients with a clinical indication for ultrasound. Furthermore, the literature on point-of-care ultrasound (POCUS) in Sub-Saharan Africa was reviewed to establish its applicability, most frequent indications, findings, and implications for treatment, and therefore relevance in POCUS curricula, with a main focus on infectious diseases...
November 9, 2016: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/27677085/predicting-fluid-responsiveness-using-bedside-ultrasound-measurements-of-the-inferior-vena-cava-and-physician-gestalt-in-the-emergency-department-of-an-urban-public-hospital-in-sub-saharan-africa
#7
Hendry Robert Sawe, Cathryn Haeffele, Juma A Mfinanga, Victor G Mwafongo, Teri A Reynolds
BACKGROUND: Bedside inferior vena cava (IVC) ultrasound has been proposed as a non-invasive measure of volume status. We compared ultrasound measurements of the caval index (CI) and physician gestalt to predict blood pressure response in patients requiring intravenous fluid resuscitation. METHODS: This was a prospective study of adult emergency department patients requiring fluid resuscitation. A structured data sheet was used to record serial vital signs and the treating clinician's impression of patient volume status and cause of hypotension...
2016: PloS One
https://www.readbyqxmd.com/read/27670679/tuberculous-spondylitis-diagnosed-through-xpert-mtb-rif-assay-in-urine-a-case-report
#8
George Sikalengo, Adria Ramirez, Diana Faini, Kim Mwamelo, Manuel Battegay, Levan Jugheli, Christoph Hatz, Klaus Reither, Emilio Letang
BACKGROUND: Extrapulmonary tuberculosis (EPTB) is associated with high rates of morbidity and mortality. Diagnosis of EPTB is challenging in resource-limited settings due to difficulties in obtaining samples, as well as the paucibacillarity of the specimens. Skeletal tuberculosis accounts for 10-35 % of EPTB cases, with vertebral osteomyelitis (Pott's disease) representing 50 % of the cases. We present two cases of suspected Pott's disease, diagnosed through GeneXpert MTB/RIF assay in urine at a rural Tanzanian hospital...
September 26, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27591369/critical-review-of-the-analysis-of-brominated-flame-retardants-and-their-environmental-levels-in-africa
#9
REVIEW
Martin Brits, Jayne de Vos, Jana M Weiss, Egmont R Rohwer, Jacob de Boer
World-wide, the prevalence of brominated flame retardants (BFRs) is well documented for routine analysis of environmental and biological matrices. There is, however, limited information on these compounds in the African environment and insufficient information on the analytical approaches used to obtain data. This paper presents a review on BFR levels in the African environment and the various analytical methodologies specifically applied in Africa for polybrominated diphenyl ethers (PBDEs), polybrominated biphenyls and alternative-BFRs...
December 2016: Chemosphere
https://www.readbyqxmd.com/read/27516176/gastroschisis-in-uganda-opportunities-for-improved-survival
#10
Anne S Wesonga, Tamara N Fitzgerald, Ronald Kabuye, Samuel Kirunda, Monica Langer, Nasser Kakembo, Doruk Ozgediz, John Sekabira
PURPOSE: Neonatal mortality from gastroschisis in sub-Saharan Africa is high, while in high-income countries, mortality is less than 5%. The purpose of this study was to describe the maternal and neonatal characteristics of gastroschisis in Uganda, estimate the mortality and elucidate opportunities for intervention. METHODS: An ethics-approved, prospective cohort study was conducted over a one-year period. All babies presenting with gastroschisis in Mulago Hospital in Kampala, Uganda were enrolled and followed up to 30days...
November 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27451869/clinical-breast-examination-screening-by-trained-laywomen-in-malawi-integrated-with-other-health-services
#11
Lily Gutnik, Clara Lee, Vanessa Msosa, Agnes Moses, Christopher Stanley, Suzgo Mzumara, N George Liomba, Satish Gopal
BACKGROUND: Breast cancer awareness and early detection are limited in sub-Saharan Africa. Resource limitations make screening mammography or clinical breast examination (CBE) by physicians or nurses impractical in many settings. We aimed to assess feasibility and performance of CBE by laywomen in urban health clinics in Malawi. METHODS: Four laywomen were trained to deliver breast cancer educational talks and conduct CBE. After training, screening was implemented in diverse urban health clinics...
July 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27295189/clinical-presentation-diagnosis-and-bacterial-epidemiology-of-peritoneal-tuberculosis-in-two-university-hospitals-in-france
#12
Zoé Cavalli, Florence Ader, Florent Valour, Julien Saison, Loïc Boussel, Oana Dumitrescu, Thomas Perpoint, Christian Chidiac, Thierry May, Tristan Ferry
INTRODUCTION: Diagnosis of peritoneal tuberculosis (pTB) is difficult, even in developed countries, where data are lacking. The aim of the present study was to describe the clinical presentation, diagnosis, and bacterial epidemiology of pTB in France over a 10-year period. METHODS: A retrospective study was conducted on pTB in two university hospitals in France, between January 2004 and December 2014. RESULTS: Among the 34 patients, 76.5% were migrants from areas of endemic tuberculosis (TB), mainly Africa...
June 2016: Infectious Diseases and Therapy
https://www.readbyqxmd.com/read/27239588/comparison-of-ocular-biometry-measurements-by-applanation-and-immersion-a-scan-techniques
#13
Dupe S Ademola-Popoola, Donald A Nzeh, Sadiat E Saka, Lateefat B Olokoba, Tokunbo S Obajolowo
PURPOSE: The study compared ocular biometry values using applanation and immersion techniques to determine the most applicable method for our tertiary training centre where personnel with different levels of experience and expertise in biometry take measurements used in calculation of required intraocular lens before cataract surgery. METHODS: The study was a prospective cross-sectional comparative study of different techniques of ocular biometry from diagnostic equipment (biometry probe 10 MHz Sonomed(®) A-scan (PACSCAN 300A, USA)...
September 2015: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/27190318/a-novel-collaborative-community-based-hepatitis-b-screening-and-linkage-to-care-program-for-african-immigrants
#14
Hari Shankar, Demetri Blanas, Kian Bichoupan, Daouda Ndiaye, Ellie Carmody, Valerie Martel-Laferriere, Joan Culpepper-Morgan, Dougles T Dieterich, Andrea D Branch, Mulusew Bekele, Kim Nichols, Ponni V Perumalswami
BACKGROUND: Sub-Saharan African nations have among the highest rates of chronic hepatitis B virus (HBV) infection worldwide, but little is known about HBV infection in African-born persons in the United States. METHODS: From October 2011 to July 2013, community-based HBV screenings were conducted targeting persons originating from Africa in New York City. Persons were identified as currently HBV infected (HBsAg positive) or exposed (HBcAb positive). RESULTS: Overall, 955 persons were screened for HBV; the median age was 45 years (interquartile range, 35-54 years) and 75...
June 1, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27084750/self-assessment-of-eligibility-for-early-medical-abortion-using-m-health-to-calculate-gestational-age-in-cape-town-south-africa-a-feasibility-pilot-study
#15
MULTICENTER STUDY
Mariette Momberg, Jane Harries, Deborah Constant
BACKGROUND: Although abortion is legally available in South Africa, barriers to access exist. Early medical abortion is available to women with a gestational age up to 63 days and timely access is essential. This study aimed to determine women's acceptability and ability to self-assess eligibility for early medical abortion using an online gestational age calculator. Women's acceptability, views and preferences of using mobile technology for gestational age (GA) determination were explored...
April 16, 2016: Reproductive Health
https://www.readbyqxmd.com/read/27068867/ultrasound-findings-in-42-patients-with-cytotoxic-tissue-damage-following-bites-by-south-african-snakes
#16
Darryl Wood, Benjamin Sartorius, Richard Hift
BACKGROUND: Snakebites that have cytotoxic venom can cause significant soft tissue swelling. Assessing the site and degree of swelling using ultrasound as a non-invasive technique would be an important tool for instituting appropriate treatment. METHODS: Forty-two patients who presented to a referral hospital in South Africa with cytotoxic swelling of the limbs from snakebite were assessed using ultrasound. The envenomed limb of each patient was scanned at the point of maximal swelling and compared with the unaffected limb at the same site...
July 2016: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/27064242/early-cranial-ultrasound-findings-among-infants-with-neonatal-encephalopathy-in-uganda-an-observational-study
#17
Cally J Tann, Margaret Nakakeeto, Cornelia Hagmann, Emily L Webb, Natasha Nyombi, Flaviah Namiiro, Kelly Harvey-Jones, Anita Muhumuza, Kathy Burgoine, Alison M Elliott, Jennifer J Kurinczuk, Nicola J Robertson, Frances M Cowan
BACKGROUND: In sub-Saharan Africa, the timing and nature of brain injury and their relation to mortality in neonatal encephalopathy (NE) are unknown. We evaluated cranial ultrasound (cUS) scans from term Ugandan infants with and without NE for evidence of brain injury. METHODS: Infants were recruited from a national referral hospital in Kampala. Cases (184) had NE and controls (100) were systematically selected unaffected term infants. All had cUS scans <36 h reported blind to NE status...
2016: Pediatric Research
https://www.readbyqxmd.com/read/26989403/contribution-of-ultrasonography-to-the-diagnosis-of-internal-bleeding-in-snakebite-envenomation
#18
Blaise Adelin Tchaou, Kofi-Mensa Savi de Tové, Yolande Sissinto-Savi de Tové, Aurélien Tchémaha C Djomga, Abdou-Rahman Aguemon, Achille Massougbodji, Jean-Philippe Chippaux
BACKGROUND: In Africa, snakebite envenomations are frequently complicated by life-threatening hemorrhagic syndromes. The authors of the present study conducted a prospective analysis at the University Hospital of Parakou (north of Benin) for seven months (January 1 to July 31, 2014) to assess the contribution of ultrasonography to the diagnosis of internal bleedings and management of envenomation. METHODS: An ultrasound examination was performed in all patients with clinical envenomation regardless of its severity...
2016: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/26958008/prevalence-of-intermittent-preventive-treatment-with-sulphadoxine-pyrimethamine-iptp-sp-use-during-pregnancy-and-other-associated-factors-in-sekondi-takoradi-ghana
#19
Verner N Orish, Onyekachi S Onyeabor, Johnson N Boampong, Richmond Afoakwah, Ekene Nwaefuna, Samuel Acquah, Adekunle O Sanyaolu, Nnaemeka C Iriemenam
BACKGROUND: Intermittent preventive treatment in pregnancy (IPTp) with sulphadoxine-pyrimethamine (SP) has been adopted as policy by most countries in sub-Saharan Africa. This cross-sectional study assessed the prevalence of IPTp-SP usage for prevention of malaria among pregnant women as well as evaluated factors associated with IPTp-SP use during pregnancy in Sekondi-Takoradi region of Ghana. METHODS: Pregnant women attending their antenatal-care with either clinical/ultrasound evidence of pregnancy were recruited...
December 2015: African Health Sciences
https://www.readbyqxmd.com/read/26879849/timing-of-malaria-in-pregnancy-and-impact-on-infant-growth-and-morbidity-a-cohort-study-in-uganda
#20
Pierre De Beaudrap, Eleanor Turyakira, Carolyn Nabasumba, Benon Tumwebaze, Patrice Piola, Yap Boum Ii, Rose McGready
BACKGROUND: Malaria in pregnancy (MiP) is a major cause of fetal growth restriction and low birth weight in endemic areas of sub-Saharan Africa. Understanding of the impact of MiP on infant growth and infant risk of malaria or morbidity is poorly characterized. The objective of this study was to describe the impact of MIP on subsequent infant growth, malaria and morbidity. METHODS: Between 2006 and 2009, 82 % (832/1018) of pregnant women with live-born singletons and ultrasound determined gestational age were enrolled in a prospective cohort with active weekly screening and treatment for malaria...
February 16, 2016: Malaria Journal
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